Spring balance assembly

Details Spring balance assembly Spring balance assembly

2006-01-10

2006-01-10

Lavinder, Jack (Department: 3677)

Miscellaneous hardware (e.g., bushing, carpet fastener, caster,

Sash balances

Spring

C049S181000

Reexamination Certificate

active

06983513

ABSTRACT:
The present invention provides a balance assembly (10) for use with a sash window assembly (104) slidable within a master frame (110). The balance assembly (10) generally includes a plate (20), at least one coil (40), and a shoe or pivot brake assembly (60). The plate (20) is adapted to be attached to the master frame (110). The spring (40) has a coiled portion (42), an intermediate portion (43), and a free portion (44). The coiled portion (42) of the spring (40) is rotatably supported by a support member (30) extending from the plate (20). The free portion (44) of the spring (40) has a curved configuration with a curved end (46). The pivot brake assembly (60) has at least one slot (76) adapted to receive and retain the free portion (44) of the spring (40). The slot (76) defines a protrusion (83) that engages the free portion (44).

REFERENCES:
patent: 1226843 (1917-05-01), Arvine
patent: 1965478 (1934-07-01), Smith
patent: 2067164 (1937-01-01), Smith
patent: 2262990 (1941-11-01), Cross et al.
patent: 2609193 (1952-09-01), Foster
patent: 2644193 (1953-07-01), Anderberg
patent: 2684499 (1954-07-01), Lewis
patent: 2817872 (1957-12-01), Foster
patent: 3445964 (1969-05-01), Foster
patent: 3452480 (1969-07-01), Foster
patent: 3478384 (1969-11-01), Skolnik
patent: 3711995 (1973-01-01), Anderson
patent: 3820193 (1974-06-01), Foster
patent: 3869754 (1975-03-01), Foster
patent: 3992751 (1976-11-01), Foster et al.
patent: 4028849 (1977-06-01), Anderson
patent: 4227345 (1980-10-01), Durham, Jr.
patent: 4363190 (1982-12-01), Anderson
patent: 4570381 (1986-02-01), Sterner, Jr.
patent: 4594813 (1986-06-01), Sterner, Jr.
patent: 4683676 (1987-08-01), Sterner, Jr.
patent: 4694552 (1987-09-01), Ecker et al.
patent: 4935987 (1990-06-01), Sterner, Jr.
patent: 4953258 (1990-09-01), Mennuto
patent: 4958462 (1990-09-01), Cross
patent: 4961247 (1990-10-01), Leitzel et al.
patent: 5119591 (1992-06-01), Sterner, Jr. et al.
patent: 5140769 (1992-08-01), Hickson et al.
patent: 5152032 (1992-10-01), Davis et al.
patent: 5157808 (1992-10-01), Sterner, Jr.
patent: 5189838 (1993-03-01), Westfall
patent: 5206973 (1993-05-01), Belcher
patent: 5210976 (1993-05-01), Cripps
patent: 5232208 (1993-08-01), Braid et al.
patent: 5251401 (1993-10-01), Prete et al.
patent: 5353548 (1994-10-01), Westfall
patent: 5365638 (1994-11-01), Braid et al.
patent: 5371971 (1994-12-01), Prete
patent: 5377384 (1995-01-01), Riegelman
patent: 5463793 (1995-11-01), Westfall
patent: 5632117 (1997-05-01), Prete et al.
patent: 5661927 (1997-09-01), Polowinczak et al.
patent: 5806243 (1998-09-01), Prete et al.
patent: 5924243 (1999-07-01), Polowinczak et al.
patent: 6041475 (2000-03-01), Nidelkoff
patent: 6108976 (2000-08-01), Kato et al.
patent: 6115884 (2000-09-01), DeJong et al.
patent: 6119398 (2000-09-01), Yates, Jr.
patent: 6148562 (2000-11-01), Stark et al.
patent: 6183024 (2001-02-01), Schultz et al.
patent: 6378169 (2002-04-01), Batten et al.
patent: 6393661 (2002-05-01), Braid et al.
patent: D462258 (2002-09-01), Meunier
patent: 6474394 (2002-11-01), Kuhar
patent: 6523307 (2003-02-01), Prete et al.
patent: 6553620 (2003-04-01), Guillemet et al.
patent: 2004/0006845 (2004-01-01), Polowinczak et al.

Affiliated with

Also associated with

Rating

Spring balance assembly does not yet have a rating. At this time, there are no reviews or comments for this patent.

If you have personal experience with Spring balance assembly, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Spring balance assembly will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFUS-PAI-O-3574306